the GNU version of the Collaborative International Dictionary of English
n. The designation of position and direction.
The Century Dictionary and Cyclopedia
n. The place-names of a country or district, or a register of such names.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the nomenclature of regional anatomy
n. the branch of lexicology that studies the place names of a region or a language
Word Usage
"The Copycat Effect (NY: Simon and Schuster, 2004), and in forthcoming books, with further explorations in onomatology (the study of names) and toponomy (the study of places)."